@misc{indiciae3a69760838a1,
  title = {Opportunity knocks. What will we do?},
  author = {R Martinez},
  year = {1992},
  doi = {10.1016/s0196-0644(05)80157-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1739207/},
  note = {Source identifier: 1739207}
}